Experience indicates the maturity of a particular unit as it has acquired skills in combat. Units gain experience by striking the final blow against a unit. The killing unit receives one experience point for each level of the unit killed, up to a maximum of four per unit killed. Heroes also gain one experience point each day.
Experience is expressed as a fraction with the numerator indicating the amount of experience the unit has gained and the denominator indicating the amount of experience needed to attain the next experience level. Gaining experience levels allows the unit to attain stronger abilities and stats.